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Preparation method and mold of seamless flux-cored zinc-aluminium alloy welding wire

A zinc-aluminum alloy and flux core technology, applied in metal extrusion dies, manufacturing tools, welding equipment, etc., can solve the problems of no breakthrough in production technology, lower yield, weight limit, etc., and improve the efficiency of drawing and diameter reduction , high production efficiency and good drawing performance

Active Publication Date: 2013-12-25
绍兴市天龙锡材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above production processes 2 and 3, due to the use of a single wire billet for drawing and reducing, its weight is limited, when the packaging weight changes, there will be excess or insufficient packaging weight The product can only be treated as waste product, further reducing its yield
[0008] Flux-cored zinc-aluminum alloy welding wire first appeared in 2002. Although the research on flux-cored zinc-aluminum alloy welding wire has been deepening in recent years, there are also many related products The latest reports, such as the German ALCOS company launched the latest flux-cored zinc-aluminum alloy self-brazing wire products in 2007, which have made breakthroughs in alloy and flux components, but there has been no breakthrough in the production process, and hollow tubes are still used to fill flux production process

Method used

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  • Preparation method and mold of seamless flux-cored zinc-aluminium alloy welding wire
  • Preparation method and mold of seamless flux-cored zinc-aluminium alloy welding wire
  • Preparation method and mold of seamless flux-cored zinc-aluminium alloy welding wire

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Embodiment Construction

[0032]Step 1 Select a zinc-aluminum alloy strip containing 15% by weight of aluminum, 0.005% of magnesium, and the balance of zinc. The thickness of the strip is 0.7mm, the width is 27.4mm, and the diameter is Φ8.5mm to take the fluxed wire Blank 4. The zinc-zinc-aluminum alloy strip is rolled into a C-shaped groove, filled with powdered flux, closed into an O-shaped tube and drawn together (diameter reduction is 3%) to obtain a fluxed wire with a diameter of Φ8.5mm Blank 4 is for use.

[0033] Step 2 Configure an extruded ingot with a casting length of 155mm and a diameter of Φ62mm, and cut off the gate for use. Among them, the weight percentage of aluminum is 15%, and the balance is zinc.

[0034] Step 3 Use figure 1 As shown in the die for extruding pipes radially, the diameter φA of the extrusion rod 1 is φ64mm, the hole diameter of the mold cylinder 6 is also φ64mm, the diameter of the outer diameter forming die 8 is φ15mm, and the inner hole forming die 5 and the con...

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Abstract

The invention discloses a preparation method of a seamless flux-cored zinc-aluminium alloy welding wire and a preparation mold. The preparation method comprises the following steps of: preparing a wire rod with a brazing flux; casting and configuring an extrusion billet; extruding the extrusion billet into a hollow pipe in the mold, and simultaneously, filling the wire rod with the brazing flux in the hollow pipe; preparing the seamless flux-cored zinc-aluminium alloy welding wire rod; and carrying out drawing and diameter reducing to the seamless flux-cored zinc-aluminium alloy welding wire rod to form the seamless flux-cored zinc-aluminium alloy welding wire. In the seamless flux-cored zinc-aluminium alloy welding wire prepared in the invention, the weight percentage of the brazing flux is 10-18%; the obtained seamless flux-cored zinc-aluminium alloy welding wire can have unlimited length, so that the following drawing and diameter reducing efficiency can be greatly improved; and the hollow pipe is radially extruded, so that certain ECAP (Equal Channel Angular Pressing) fine grain action to alloy structures can be realized, and further, the drawing property of an alloy material is better. The preparation method of the seamless flux-cored zinc-aluminium alloy welding wire and the mold, disclosed by the invention, have the advantages that mold has high production efficiency, the yield is high, and the brazing flux is less in loss, and is easy to store.

Description

technical field [0001] The invention belongs to the technical field of surface self-brazing wire processing of copper-aluminum dissimilar materials, and relates to a preparation method and equipment for a seamless flux-cored zinc-aluminum alloy welding wire. Background technique [0002] Copper is the first metal used by human beings. With its excellent performance, copper can be widely used in almost all fields. However, in the 21st century, the contradiction between copper consumption and its resources has become increasingly prominent. my country is a country that lacks copper resources and is also a country that consumes a lot of copper resources. Therefore, the shortage of global copper resources and the high growth in demand have led to a continuous and substantial rise in copper prices. Aluminum and copper have similar functions in terms of electrical conductivity and heat transfer, and the price and density of aluminum are only about one-third of copper. Therefore, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/40B21C25/02
Inventor 戴国水钱国统彭孜张小龙戴登峰
Owner 绍兴市天龙锡材有限公司
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